WASHINGTON/CAIRO - US President Donald Trump said on Saturday that Iran is negotiating with the United States.

"The plan is that (Iran is) talking to us, and we'll see if we can do something. Otherwise, we'll see what happens," Trump told a Fox News correspondent.

He added that "the last time they negotiated, we had to take out their nuclear. It didn't work, you know. Then we took it out a different way, and we'll see what happens."

"We have a big fleet heading out there, bigger than we had -- and still have, actually -- in Venezuela," Trump said.

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Trump also said the United States could not share military plans with Gulf allies while negotiating with Iran.

"We can't tell them the plan. If I told them the plan, it would be almost as bad as telling you the plan -- it could be worse, actually," Trump said, responding to reports that Gulf allies remain in the dark about potential US intervention plans involving Iran.

Explosions in Iran

A senior Iranian security official said Saturday that a structure for talks with the United States is being established, following two explosions in Iran earlier in the day that Israeli officials have denied any involvement in.

The developments unfold amid heightened regional tensions and US military movements.

At least four people were killed in a gas explosion at a residential building in Iran's southwestern province of Khuzestan on Saturday, Iran's official IRNA news agency reported, noting that the incident was caused by a gas leak at the four-unit building located in the provincial capital Ahvaz.

Separately, an explosion at an eight-story building in Bandar Abbas, a port city in Iran's southern Hormozgan province, killed at least one person and injured 14 others, according to the semi-official Tasnim news agency, with the cause under investigation.

Following the explosion, Iran's Islamic Revolution Guards Corps (IRGC) Navy, whose headquarters are in Hormozgan, said no drone attack has been carried out against any of its headquarters in the province, and no building affiliated with the force has been destroyed. The IRGC also roundly rejected rumors of the assassination of its Navy Commander Alireza Tangsiri.

Meanwhile, senior Israeli officials, quoted by major Israeli media, denied any Israeli role in the two incidents. A security official told state-owned Kan TV News that "we are monitoring, it is not ours or from us." Channel 12 News reported the Israeli security establishment's assessment that the two explosions were likely caused by an "internal incident."

These developments came amid rising regional tensions, especially between Iran and the United States, with the latter bolstering its military presence in the Middle East.

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Trump has announced that a "massive armada" is heading toward Iran and indicated he has given Teheran a deadline. Meanwhile, a US guided-missile destroyer, USS Delbert D. Black, recently made a port call in Eilat at the northern tip of the Red Sea.

On the Iranian side, Army Chief Amir Hatami warned Saturday that if the United States makes any mistake, it will definitely jeopardize its own security and that of Israel and the entire West Asia region, whereas Secretary of Iran's Supreme National Security Council Ali Larijani wrote later on X that the formation of a structure for negotiations with the United States is "progressing," without elaborating.

Additionally, Iran's Foreign Minister Seyed Abbas Araghchi was quoted on Saturday by RIA Novosti as saying that Teheran and Washington may cooperate on energy if they manage to resolve existing disagreements and conclude a new nuclear deal based on the US recognition of the peaceful nature of Iran's nuclear program.

READ MORE: Iran to consider any US military action as 'act of war'

The evolving situation has alarmed regional leaders and sparked urgent calls from the international community for renewed diplomacy.

Egyptian Foreign Minister Badr Abdelatty, who held separate phone calls with his counterparts from Iran, Qatar, Türkiye and Oman, as well as with Trump's special envoy Steve Witkoff, on Saturday urged the United States and Iran to resume negotiations and "reach a peaceful, consensual settlement" to the nuclear issue.